/**
 * Created with IntelliJ IDEA.
 * Description:
 * User: ZhongJinTao
 * Date: 2024-10-11
 * Time: 15:38
 */
public class Main {
    public static void main(String[] args) {
        Solution2 solution = new Solution2();
        solution.letterCombinations("2,3");
    }
}